| Cactaceae | |
Oreocereus australis
| (F. Ritter) A.E. Hoffm. | Cact. Fl. Silvestre Chile 80 | 1989 |
| Cactaceae | ** |
Oreocereus bruennowii
| Backeb. | Kaktus-ABC 430, index, 187 | 1935 |
| Cactaceae | |
Oreocereus celsianus
| (hort. ex Jacques & Hérincq) A. Berger ex Riccob. | Boll. Reale Orto Bot. Palermo 8(4): 259 | 1909 |
| Cactaceae | |
Oreocereus crassiniveus
| Backeb. | Desert Pl. Life 21: 9 | 1949 |
| Cactaceae | |
Oreocereus doelzianus
| (Backeb.) Borg | Cacti (Borg) 115 | 1937 |
| Cactaceae | |
Oreocereus fossulatus
| (Labour.) Backeb. | Kaktus-ABC 186 | 1935 |
| Cactaceae | |
Oreocereus hempelianus
| (Gürke) D.R. Hunt | Bradleya 5: 93 | 1987 |
| Cactaceae | |
Oreocereus hendriksenianus
| (Backeb.) Backeb. | Kaktus-ABC 186, 411 | 1935 |
| Cactaceae | |
Oreocereus hendriksenianus
| Backeb. | Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 330 | 1958 |
| Cactaceae | |
Oreocereus horridispinus
| F. Ritter & Krainz | | |
| Cactaceae | |
Oreocereus irigoyenii
| Frič | Deutsche Gärt.-Zeitung 45: 43 | 1930 |
| Cactaceae | |
Oreocereus knizei
| Hewitt & Donald | Ashingtonia 2(1): center page pull–out [4] | 1975 |
| Cactaceae | |
Oreocereus lanatus
| (Kunth) Britton & Rose | Stand. Cycl. Hort. 4: 2404 | 1916 |
| Cactaceae | |
Oreocereus leucotrichus
| (Phil.) Wagenkn. | Anales Acad. Chilena Ci. Nat. 20: 102 | 1956 |
| Cactaceae | |
Oreocereus maximus
| Backeb. | Desert Pl. Life 21: 8 | 1949 |
| Cactaceae | |
Oreocereus neocelsianus
| Backeb. | Desert Pl. Life 21: 6 | 1949 |
| Cactaceae | |
Oreocereus piscoensis
| (Rauh & Backeb.) F. Ritter | Kakteen Südamer. 4: 1365 | 1981 |
| Cactaceae | |
Oreocereus pseudofossulatus
| D.R. Hunt | Bradleya 9: 89 | 1991 |
| Cactaceae | |
Oreocereus rettigii
| (Quehl) Buxb. | Kakteen (H. Krainz) 3(12): 105c | 1973 |
| Cactaceae | |
Oreocereus ritteri
| Cullman | Kakteen And. Sukk. 7: 101, 103 | 1958 |
| Cactaceae | |
Oreocereus tacnaensis
| F. Ritter | Kakteen Südamer. 4: 1363 | 1981 |
| Cactaceae | |
Oreocereus trollii
| (Kupper) Backeb. | Kaktus-ABC 187 | 1935 |
| Cactaceae | |
Oreocereus variicolor
| Backeb. | Cact. Succ. J. (Los Angeles) 23: 20 | 1951 |